Definitions:Cat5e Cable:Category 5e (Enhanced) cable is an enhanced version of Category 5 cable. Cat5eEthernet cable is capable of transmitting data at speeds of up to 1000 Mbps (1 Gigabit per second).RJ45 Jack:The RJ45 jack (8P8C) is an 8-conductor, modular jack used to terminate UTP data cable.Booted or Unbooted Cat5e Ethernet Cable:There is no different between those two in technical specification, some peoplepreffer booted for protecting the plug for unwanted release, some preffer unbootedbecause they provide easier access to the plug.UTP Cat5e Ethernet Cable:Unshielded Twisted Pair, most popular type of cable due to its low cost.Shielded Cat5e Ethernet Cable:Shielded (STP) Cat5e Ethernet cable provide extra protection against electromagneticinterference.Plenum Cat5e Ethernet Cable:Plemun cable is made to fire code, cable must be fireproof and made from materialthat dos not produce toxic or fumes in case of fire. Cat5e Ethernet pleanum cableis required for instalation in many commercial buildings.Difference between 568a and 568b:Those are two standards for connecting Cat5e ethernet cable to connectors, both of them deffine the pinout or specific order how Cat5e patch cable need to be terminated.568-b is most commonly used in Cat5e Ethernet cables.